WALPOLE, Horace, Earl of Orford. Historical Doubts on the Life and Reign of Richard the Third. London: For J. Dodsley, 1768. 4° (234 x 185mm.). 2 folding engraved portraits. Contemporary sprinkled calf, spine ruled in gilt, red lettering piece, red sprinkled edges. Provenance: Sir James Colquhoun of Luss (armorial bookplate). Second edition. -- PENNANT, Thomas. The Literary Life...by Himself. London: Benjamin and John White and Robert Faulder, 1793. 4° (240 x 187mm.). Engraved portrait and a plate. Contemporary light calf, flat spine gilt, red lettering piece, yellow edges, short split in upper hinge). Provenance: William Danby (signature and armorial bookplate). -- [MACNEILL, Hector]. Scotland's Skaith; or, the History o'Will and Jean. Edinburgh: Mundell and Son, 1795. 8° (232 x 138mm.). 3 engraved plates (some foxing and offsetting). Contemporary mottled calf gilt, blue lettering piece on spine, sprinkled edges (spine very slightly rubbed). Provenance: Sir James Colquhoun of Luss (armorial bookplate). FIRST EDITION. -- DAVIS, Henry Edwards. An Examination of the Fifteenth and Dixteenth Chapters of Mr. Gibbon's History. London: For J. Dodsley, 1778. 8° (213 x 129mm.). Contemporary mottled calf, flat spine gilt, red lettering piece, double fillet round sides, sprinkled edges. Provenance: Sir James Colquhoun of Luss (armorial bookplate); and another volume (Huddesford;s Salmagundi, 1793).